From f8cf34c55b588799e8df8a451611b69a4ace9513 Mon Sep 17 00:00:00 2001
From: HanifKoh <76276251+HanifKoh@users.noreply.github.com>
Date: Mon, 12 Oct 2026 13:42:19 +0800
Subject: [PATCH] Reset the Fan Mover Instead of Releasing It (#16386)

Clearing per-export state called unique_ptr::release(), which gives up ownership without deleting. Every export uses a new GCode, so the pointer is still empty there today and nothing leaks; reset() states the intent and would free the object if a GCode were ever reused.
---
 src/libslic3r/GCode.cpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/libslic3r/GCode.cpp b/src/libslic3r/GCode.cpp
index cab75d5034..ec7ef83a3d 100644
--- a/src/libslic3r/GCode.cpp
+++ b/src/libslic3r/GCode.cpp
@@ -3295,7 +3295,7 @@ void GCode::_do_export(Print& print, GCodeOutputStream &file, ThumbnailsGenerato
     m_is_role_based_fan_on.fill(false);
     m_role_based_fan_marker_layer.fill(-1);
 
-    m_fan_mover.release();
+    m_fan_mover.reset();
     m_ordering_cache.clear();
 
     // Belt printer: initialize belt-specific writer via virtual hook.